9. • Presence of substance.
• Liquid.
• ppm
• Milligrams of solute.
• Liter of solvent.
• Solid dissolved in a liquid.
10. Independent Variable: Sugar concentration in the
drink. (Diet drink vs. Regular drink).
Dependent Variable: Index of refraction.
Constant Variable: Triangular prism, laser position.
11. 1. Build the equilateral triangular prism.
2. Place it on a permanent place (with cardboards
underneath/beside)
3. With laser pointer, measure minimum angle of deviation.
4. With the information, figure out the index of refraction of the
liquid/drink.
5. Compare to the diet/regular drink.